Harrow



(No Moflel.) 2 SheetsSheet 1.

W. P. TRIGGS.

HARROW.

No. 286,974. Patented 051;. 16, 1883.

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a C e WITNESSES Q Y mvmwon:

ATTORNEYS.

(Nd Model.) 2 Sheets-Sheet 2.

W. P. TRIGGS.

- v HARROW. No. 286,974. Patented Oct. 16, 1883.

WITNESSES: 4 v N %1}T ITOR: @flWW I y ATTORNEYS.

UNITED STATES ATENT FFICE.

\VILLIAM P. TRIGGS, OF EASTPORTLAND, OREGON.

HARROW- SPECIFICATION forming part of Letters Patent No. 286,974, datedOctober '16, 1883.-

Applicatidn filed December 30, 1882. (No model.)

To all whom it may concern;-

Be it known that 1, WILLIAM P. Tnrees, of East Portland, in the countyof Multnomah and State of Oregon, have invented a new and ImprovedHarrow, of which the following is a full, clear, and exact description.

This invention pertains to improvementsin harrows; and it consists inthe combinations and arrangements of parts, substantially as hereinafterfully set forth and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan View of my improved harrow. Fig. 2 is a sideelevation of the same. Fig. 3 is a plan view ofa tongue attachment to beemployed when transporting the machine from place to place; and Fig. 4.is a detail of the contrivance for hoisting and lowering the harrow inside elevation.

I use a truck-frame, a, mounted on casterwheels I) for suspending themarrow 0 above ground when transporting it from place to place, thecaster-wheels being arranged in the usual forked standards, d, which areswiveled in the angle corner-plates e, attached to the frame, andemployed for mounting the frame on the wheels, said corner-platesaffording a simple contrivance for the purpose, and at the same timebeing strengthening devices for the frame. The frame is made extensiblelaterally by the overlapping crossbars f, sliding clips 9, and,fastening-bolts h,

the object being to adjust it for the use of.

harrows constructed in two or more sections, 0, and for adapting saidsections to range their proper distance apart on side hills, and thedraw-bars, by which the harrows and the truck are to be hitched to theteam, are also made extensible, said device consisting of the parallelbars 7; and j, made in overlapping sections, as indicated by the endsections, k, and bolted together one upon another by bolts Z, the bar jbeing bent near the ends at m, and joined to the ends of bar 73 by boltsn, to which the clevises 0, connected to the axles of the fronttruck-wheels, are attached by chains 12. Said bars t' j are alsoconnected at intervals by chains q, and the harrow-sections o areconnected to bar Z by chains 8, so that the draft is applied directly tothe harrows when they are at work. The barrow-bars are made in theangular or zigzag lines shown in Fig. 1, and braced with their strips-uof strap-iron, crossing the angles and suitably attached to the uppersides of said bars.

For suspending the harrow-sections from the truck-frame, I employ leversw, connected to the front and rear ends, respectively, by T-heads y andchains 2 and z. The levers w are pivoted to the frame at a, and alsoconnected to a hand-lever, a, which ranges in suitable relation to theseat 0, to be manipulated by the driver sitting thereon, so that bypressing lever a down the harrows will be raised up, as represented indotted lines, Fig. 2, where they may be secured by attaching hook d ofone of the levers w to the lever a.- The lever a is connected to thelevers w by links b.

To accommodate the suspending devices to the angular form of theharrows, I cause the chains zto range inthe inclines, as shown, whilechains 2 are vertical, the harrows being suspended centrally from thelevers w.

d is a link connected to the machine to permit the hitching of the teamthereto, the machine being drawn endwise when it is desired to move italong narrow ways or through fencegates. At the other end of the machineis attached a socket, e, to receive the stem of the seat-bracket, topermit theshifting of the seat to that end thereof when the machine isto be drawn or moved as last indicated. A tongue, f, provided withpivoted clevises g, is adapted to be coupled with the wheel-pivots, thesame as clevises 0, said tongue being connected to the wheels of one endof the frame to control the movement of the machine in going down steephills.

tached so as to be adjustable along the draftbars, in order that theymay-be shifted nearer the ends of said bars in proportion as the sidehills are steeper, and toward the center as the land is more level, theobject being to enable the teams to pull well'to the upper side to keepthe harrow from swinging downlevel ground.

In the use of this machine the clevises by I which the teams are to behitched on are at- 1 g hill, and to pull nearer or at the center onclaim as new, and desire to secure by Letters ble seriaHy-apertureddraft-bars ij, the clev- IO Patent, is ises 0 connected by the chains 1)to the draft- 1. The combination of T-headed levers w, bar i, and thebarrow-sections 0, connected by vertical chains 2, and inclined chains 2with chains 8 to the draft-bar '5, substantially as 5 the truck-frameand angular barrow-frames c, and for the purpose set forth.

substantially as described. WILLIAM P. TRIGGS.

2. In a harrow, the combination, with the Witnesses: extensible frame af, mounted upon the caster- '1. J. MATLOOK,

Wheels, and their standards d, of the eXtensi- JOHN CARNEGIE.

